Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Desulfurization kinetics of waste paper-sludge and limestone in a fluidized bed reactor

유동층반응기에서 폐제지슬러지와 석회석의 탈황 동역학

  • Published : 2002.10.01
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Abstract

The objectives of this study were to investigate the desulfurization kinetics of paper sludge and limestone in a fluidized bed reactor according to bed temperature and air velocity. The experimental results were presented as follows ; First, the bed temperature had a great influence on the desulfurization efficiency of limestone and paper sludge. In paper sludge, the optimum condition in desulfurization temperature was at 80$0^{\circ}C$ and in limestone, that was at 850 $^{\circ}C$ or 900 $^{\circ}C$ Second, as air velocity increased, the desulfurization efficiency(or the absorbed amount of sulfur dioxide) by limestone and paper sludge decreased. And the absorbed amount of sulfur dioxide by paper sludge was larger than that of by limestone. Third, as the velocity increased and the optimum desulfurization temperature became, ks and the removal efficiency increased. So, ks, kd highly depended on the air velocity and bed temperature.

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References

  1. S.Ergun, 1952, Chem. Eng. Prog., 48, 89.
  2. 張正國, 1995, 2. 2段 旋回流 流動層 燃燒爐의 燃燒特性 및 大氣汚染物質 制御에 關한 硏究, PhD Thesis, 부산수산대학교, 환경공학과.
  3. 장현태, 1991, 유동층 연소로에서 Screen 충진물이 아황산가스 제어에 미치는 영향, 석사학위 논문, 고려 대학교 화학공학과.
  4. German, R. M. and Z. A. Munir, 1976, Surface Area Reduction during Isothermal Sintering, J. Am. Ceram. Soc., 59, 379. https://doi.org/10.1111/j.1151-2916.1976.tb09500.x
  5. Neathery, J. K., J. Schafer, R. Gonzalez, and J. Stencel, 1991, A Novel Approach to AFBC Design with Low NOx and High Sulfure Capture. Proc. 11th Int. Conf on Fluidized Bed Combustion, ASME, Montreal, Canada, 3, 1511-15l.
  6. Borgwardt, R.H., K.R. Bruce, and N.F. Roache, 1986, Method for Variation of Grain Size in Strudies of Gas-Solid Reactions Involving CaO, Ind. Eng. Chem. Fundam., 25, 165-169. https://doi.org/10.1021/i100021a026
  7. Borgwardt, R.H., K.R. Bruce, and N.F. Roache, 1986, Method for Variation of Grain Size in Strudies of Gas-Solid Reactions Involving CaO, Ind. Eng. Chem. Fundam., 25, 165-169. https://doi.org/10.1021/i100021a026
  8. Borgwardt, R.H., 1985, Calcination Kinetics and Surface Area of Dispersed Limstone Particles, A.I.Ch.E. J., 31, 103. https://doi.org/10.1002/aic.690310112
  9. Khraisha, Y. H. and D. R. Dugwell, 1992, Coal Combustion and Limestone Calcination in a Suspension Reactor, Chemical Engineering Science, 47(5), 993-1006. https://doi.org/10.1016/0009-2509(92)80226-3
  10. Borgwardt, R. H. and K. R. Bruce, 1986, Effect of specific surface area on the reactivity of CaO with $SO_2$, Aiche journal, 32(2).
  11. Simons, G. A., 1988, Parameters Limiting Sulfation by CaO, AIChE J., 34, 167. https://doi.org/10.1002/aic.690340124
  12. 강순국, 1992, 열중량반응기와 유동층 연소로에서의 SOx-석회석 탈황 반응 특성, PhD Thesis, 한국과학기술원 화학공학과.